Diamond-retainer for diamond-saw molds.



L. M. PINK.

DIAMOND RETAINER FOR DIAMOND SAW MOLDS. APPLICATION FILED APR. 17. ms.

1,210,293., r Patented Dee.26,1916.

. unirnn STATES. PATENT OFFICE.

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Specification of Letter'a'ratent. Patnjted Dec, 1916.

Application filed April 17, 1916. Serial No. 91,835.

To all whom it may concern." Be it known that I, LEO M. FINK, a cltlzen of'the'United-States, residing at Montreal, Province of Quebec, Canada, have 1nvented certain new and useful Improvements in Diamond-Retainers for Diamond- Saw Molds, of which the following 1s a specification.

\ The present invention relates to molds for molding teeth for stone saws of the type employmg abrasive material, such as black or Brazilian diamonds, as described in my co-pending application filed July 28, 1915, Serial Number 42,439, of which this application is. a continuation in part and the present invention relates more particularly to retainers for retaining the diamonds or abrasive material in proper position within the molds.

The invention seeks to provide a means for confining the diamonds to a portion of the mold cavity, so that they will not be floated by the molten metal out of the desired position.

With the above and other objects in view which will hereinafter appear as the descrlption continues, the invention consists of the novel features of construction and. the formation of parts as will be hereinafter more fully described .and particularly pointed out in the appended claims.

In the accompanying drawings is shown the simple and preferred form of the invention it being, however, understood that no limitation is necessarily made to the pre-.

cise structural details herein exhibited but the right is hereby reserved to any changesor alterations that may be had and come within the scope of the invention without departing from the spirit thereof or sacrificing the efficiency of the same.

In the drawings: Figure 1 is a plan view of the retainer as applied within the mold cavity of the mold; Fig. 2 is a vertical transverse section taken on the line -22 of Fig. 1; Fig. 3 is a vertical longitudinal section taken on the line 33 of Fig. 1; and Fig. 4 is a detail perspective view.

Referring now more particularly to the drawings wherein like and corresponding parts are designated by similar reference characters throughout the several views the letter A indicates the base block of the mold having resting thereon the ,side blocks B and C of the mold which are connected together.

The base block of the mold is provided with a channel D in which rest the depending end portions of the ribs E formed integral with the side block B. .The mold as herein shown is more fully described and claimed in my co-pending application above referred to.

The retainer 1 is adapted to rest within the mold cavity within the channel D of the base block whereby the diamonds F will be retained in the desired position within the mold cavity and prevent them from floating when the molten metal is poured within the cavity. The plate 1 is stamped from a sheet of metal having a plurality of portions 2 therein and having depending supporting legs 3 arranged at each end thereof. The central portion of the plate is provided with a longitudinal slot 4 and the opposite sides of the plate are provided with notches 5 in which may rest the diamonds F. In Fig. 1 of the drawings the notches 5 are shown to be in each side of the plate and opposite from each other, whereas the notches shown in the plate of Fig. 4 are alternately arranged whereby the molten cavity as better shown in Figs. 2 and 3 of the drawings whereby when the molten metal is poured within the cavity the same will travel through the perforations 2, the slot 4 and around the plate so that the metal will accumulate on all sides of the diamonds.

whereby when the metal is hardened it will securely grip the diamonds and retain the same within the tooth.

To hold the diamonds Within the plate and prevent the same from floating out of the notches 5 I provide the wires 6 which are connected at one end as at 7 to the plate 1 extending over the diamonds arranged Within thenotches 5 and the opposite or free ends 8 of the wires extend beyond the plate 1 and are retained in position by the depending ribs E of the side block B resting thereon.

Having thus fully described my inven- 1 fining loose abrasive tion. what I claim as new and desire to secure by Letters Patent is:

1. Ina mold for saw teeth means for confining individual pieces of abrasive material to the opposite sides of the mold cavity comprising a single foraminous partition arranged in a horizontal plane within the mold cavity and extending across the mold cavity and means for retaining the partition in spaced relation with the bottom of the mold.

2. In a mold for making individual saw teeth means for separating and confining individual pieces of abrasive material adjacent to the side walls of the mold cavity comprising a single perforated plate and means for supporting and retaining said plate in spaced relation and in a parallel plane with the bottom of the mold cavity for the purpose set fort 3. In a-mold for saw teeth, means for conof the mold cavity, a plate having recesses arranged alternately within the opposite sides thereof. 1

4. A device of the character described comprising a perforated notched holding plate havlng end supporting members for the purpose set forth. a

5. A device ofthe character described comprising a rectangular plate, the side walls of the plate being notched and supporting members carried by the plate.

. 6. The combination with a mold having a cavity therein, a perforated plate retained within said mold cavity and held in spaced relation with the bottom thereof and the plate having notches therein for the purpose set forth.

7. The combination with a mold having av cavity therein, a perforated plate supported within 'said cavity and held in spaced relation' with the bottom thereof, said plate havmaterial to' a portion said. means comprising.

ing alternately arranged notches in the sides thereof, and retaining strips connected to said plate.

8. The combination with a'mold having a channeled base block and side blocks having ribs adapted to rest within the channel of the base block, of a foraminous member adapted to rest within said'channel, longitiidinally extending members connected to said plate, and the ribs of the side blocks adapted to rest uponsaid longitudinally extending members for the purpose set forth. i 9. The combination with a mold comprising a channeled base block and side blocks having depending ribs adapted torest within said channel, a retaining plate adaptedto rest within said channel between said ribs; retaining members connected at one end to-said. plate and said ,ribs adapted to retain the opposite ends of said retaining members in position.

'10. The combination with a mold 'coin- 65,

prising a channeled base block and side -blocks having ribs adapted to rest within the channel of the base block, a perforated plate adapted to rest within the channel,v means for supporting ing the same in spaced relation with the bottom of said channel, the sides of said plate having a plurality of notches formed therein, retaining wires connected at one end to said plate and extending across the same above the notchesformed within the plate and saidribs. adapted to rest'upon the free ends of said retaining wires for the purpose set forth.

In witness whereof, I hereunto subscribe my name to this specification in the presence of .two witnesses.

v LEO M. FINK. IVitnesses:

A. BASTIEN, WILLIAM G. Lm'ron.

said plate and hold 70 i 

